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Phys.org / Microtubules in ovarian cell bridges may be key to fertility
Female fertility depends on the successful growth and maturation of eggs (oocytes) within ovarian follicles. Within these follicles, the oocyte is surrounded by granulosa cells that supply nutrients, signaling molecules and ...
Medical Xpress / You can dream while you're awake. The boundary between wakefulness and sleep is a lot blurrier than you'd think
Tonight, as you close your eyes in bed, something strange will happen to you: Your mind will drift from an ordinary thought to a dream, but it will be impossible to say exactly when it happened. We tend to imagine that the ...
Phys.org / Ancient gum disease may have helped reshape jaws before human brains expanded
Human evolution is generally explained through changes in brain size, locomotion or tool use, but new research from Wits University suggests that gum disease and changes in facial structure may have been important factors ...
Medical Xpress / Australians missing out on 'major gap' between innovation and patient care
Promising health tools that seek to predict a person's risk of serious health problems before they happen are rarely being used in everyday health care, according to new Curtin University research. The review, published in ...
Medical Xpress / Parkinson's patients undergoing deep brain stimulation show little to no cortical Lewy pathology
Researchers at the Icahn School of Medicine at Mount Sinai have found that patients with Parkinson's disease undergoing deep brain stimulation (DBS) show little to no Lewy pathology in the prefrontal cortex at the time of ...
Medical Xpress / Ultra-small magnetoelectric antenna could unlock new generation of implantable devices
A breakthrough in biomedical engineering could help pave the way for tiny implantable devices capable of diagnosing, monitoring and treating a wide range of health conditions. An international team of researchers led by the ...
Phys.org / Light flips bacterial signaling enzyme between two shapes, unlocking how signals travel
Researchers at the University of Bayreuth and Forschungszentrum Jülich have demonstrated that specific light-sensitive enzymes—so-called sensor histidine kinases (SHKs)—transmit their signal through a light-controlled change ...
Phys.org / Cosmic dust could play key role in cracking long-standing mystery of solar corona heating
A researcher at The University of Alabama in Huntsville (UAH), a part of The University of Alabama System, has published a new study in The Astrophysical Journal suggesting that tiny charged dust grains near the sun may significantly ...
Phys.org / Were Clovis foragers in Late Pleistocene North America big-game hunters, or just big-game scavengers?
There are currently 15 well-documented Late Pleistocene localities in North America in which Clovis points are found associated with proboscidean remains (of mammoth, mastodon and gomphothere). Archaeologists routinely assume ...
Medical Xpress / Dynamic protein behavior drives blood-brain barrier specialization, study reveals
A study led by researchers at the Institute for Bioengineering of Catalonia (IBEC), in collaboration with the Proteomics Platform of the Institute for Research in Biomedicine (IRB Barcelona), has uncovered a key mechanism ...
Phys.org / Scientists teach human cells to compute like tiny computers
Researchers have developed a way to program human cells to perform calculations and make autonomous decisions, similar to how computer chips work.
Medical Xpress / We can't entirely blame COVID vaccine mandates for lower vaccination rates today. It's not that simple
Childhood vaccination rates have slumped globally. In several countries, people are more hesitant about getting vaccinated. Populist political actors promote distrust of government and scientific institutions. And the disinformation ...
